Well-casing.



UNITED STATES FREDERICK W. HUNICK, OF WESTBEND, IOWA.

WELL-CASING.

SPECIFICATION forming part of Letters Patent No. 672,556, dated April23, 1901.

Application filed June 25, 1900. Serial No. 21,538. (No model.)

To all whom it may concern.-

Beit known that I, FREDERICK W. HUNIGK, a citizen of the United States,residing at Westbend, in the county of Humboldt and State of Iowa, haveinvented a new and useful Well-Casing, of which the following is aspeciication.

This invention relates to well-casings in general, and more particularlyto that class wherein the casing is formed in sections, the object ofthe invention being to provide a construction including a number ofdraintiles or similar short pipe-sections connected by simple andefficient couplings and having a lower end piece, which is tied to theuppermost pipe-section in a manner to hold the several sections securelyin place.

Further objects and advantages of the invention will be evident from thefollowing description.

In the drawings forming a portion of this specification, and in whichlike numerals of reference indicate similar parts in both views,

Figure lis an elevation of a casing constructed in accordance with thepresentinvention. Fig. 2 is a central vertical section of the casing,showing the formation of the coupling and of the end piece. Y

Referring now to the drawings, there is shown a casing comprisingaplurality of pipesections 5. In the present instance only two sectionsare shown, although it will be readily understood that any number ofsections may be used, depending upon the depth of the well. The lowerpipe-section has its lower end disposed in an end piece 6, which iscylindrical at its outerface, While its inner face is tapered upwardlyfrom its lower edge to a point below its upper edge, at which latter`point the end piece is reduced in internal diameter and is formedcylindrical to its upper end. The result of this taper and subsequentincrease in internal diameter is the formation of a shoulder 7, againstwhich is seated the lower end of the lowermost pipesection 5, whichlatter nts snugly the upper cylindrical end of the end piece 6.

Upon the upper end of the lowermost pipesection 5 is disposed a coupling8, which is in the form of a metallic sleeve,which is crimped 5 inwardlymidway between its ends to form. an inwardly-directed annular flange 9,against which rest the upper and lower ends of lthe pipe-sections 5,which are coupled thereby.

Any suitable number of pipe-sections are thus 5 v connected by means ofthe coupling-sleeves 8, and in order to hold them against longitudinaldisplacement from the sleeves tie-wires lO are employed. The tie-wires10 are engaged at their lower ends with perforated lugs l1, 6

formed upon the outer surface of the end piece 6, the upper ends of thewires beings` connected to double hooks 12, which are engaged over theupper edge of the uppermost pipe-section 5, as shown. The tire-wires maybe engaged with the hooks and secured by wrapping, as shown, the Wiresbeing `first drawn taut to hold the sections and couplings rigidly inposition.

It will of course be'understood that in prac- 7 tice variousmodifications of the specific construction shown may be made and thatany suitable materials and proportions may be used for the various partswithout departing from the spirit of the invention. 7

In a device of the class described, the combination with the pipe-section 5,and the coupling 8 receiving the adjacent ends of thepipesections and provided at its center with an 8 inwardly bent orcrlrnped portion sopor-ating the pipe-sections, of the end piece 6provid ed at its upper end with a seat receiving the ad"""' jacentpipe-section, said end piece being provided with exterior ears andhaving its bore 8 tapered upwardly from its lower end to the said seat,and the wires 10 secured at their lower ends to the said eyes andprovided at their upper ends with hooks engaging the upper end of theuppermost stantially as described.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

FREDERICK W. HUNICK. Witnesses:

ERNEST K. EASTON, J. N. PHILLIPS.

pipe-section, sub-

